It tasted like a mouthful of clam shells probably Removing the stomach part, and having in mind that some of the body parts were ravaged by scavengers (so that

It tasted like a mouthful of clam shells probably Removing the stomach part, and having in mind that some of the body parts were ravaged by scavengers (so that parts weren't poisonous), I would assume that the taste would remind us to other grazing arthropods like crustaceans. I assume that this was an entire animal found in two parts and not an empty moult filled with random debris from thanatocenose. Those tiny jumping beans called ostracods fossilize easily and can sink and accumulate by thousands but would be not so convenient to catch alive one by one. They are very hard, relatively fast, and often difficult to swallow (many have strong spines). I would suggest to take an external sample of the rock matrix to use it as a control group. Thus we can check if the same species appear inside and outside the trilobite and if they do it at the same concentration. If is a yes, then this could be also thanatocenose accumulated in a hollowed dead trilobite and the claims that trilobites can't digest calcium should be taken with a pinch of marine salt.